rag, gg suit, trends, and branching off of shuko is just my staple base I usually use for semi/carry

so for me the differentiating factor is the orb

the first rock lee build uses lifesteal to steadily accumulate decent dmg very fast along with crow to stay high hp in fights (teching)

the second one utilizes more damage and the maim to do tremendous dps but runs the risk of dying/low life more (aggro) [forgot to mention getting gelel negates the dmg from lee's ult, in which I would take out tobi's]-for itachi using prob with feedback essentially does what naruto usually does with his clone spam, also extra useful with itachi's hold/slow. it limits opponent's escape probability with itachi's high atkspd since you already have blink too, and with no lifesteal prob also helps you escape